TORONTO—Nearly a quarter-billion dollars in extra funding from Ontario agency Metrolinx kept the largest transit infrastructure project in the country on track when construction began to fall behind schedule last year, according to a report released last week by Ontario Auditor General Bonnie Lysyk.

This August, Metrolinx and Crosslinx Transit Solutions, the consortium responsible for building the Eglinton Crosstown light rail project, reached a deal to maintain the LRT’s original construction timeline, but the public cost of the agreement was not disclosed. That bill to speed up worked and resolve a 15-month dispute between the two parties, reached $237 million, the auditor general’s report has now revealed.